CHEM BRAIN

When a buffer solution of sodium acetate and acetic acid is diluted with water [CPMT 1985] 

When a buffer solution of sodium acetate and acetic acid is diluted with water [CPMT 1985] 

Which of the following is a buffer [MP PMT 1991; BHU 1995] 

Which of the following solutions can act as buffer [[JIPMER 1997]]

When an acid or alkali is mixed with buffer solution, then pH of buffer solution [CPMT 1997] 

A physician wishes to prepare a buffer solution at pH = 3.58 that efficiently resists changes in pH yet contains only small concentration of the buffering agents. Which of the following weak acids together with its sodium salt would be best to use. [[CBSE PMT 1997]

The pH of a buffer solution containing 25 ml of 1 M CH3COONa and 25 ml of 1 M CH3COOH will be appreciably affected by 5 ml of [CPMT 1987] 

The pH of a simple sodium acetate buffer is given by

\( pH = pk_a + \frac{Salt}{Acid} \) 

Ka of acetic acid = 1.8 x 10^-5  

If [Salt] = [Acid] = 0.1 M, the pH of the solution would be about [BHU 1987]

A buffer solution has equal volumes of 0.2M NH4OH and 0.02 M NH₄Cl . The pKb of the base is 5. The pH is [CBSE PMT 1989; KCET 2005]

Which of the following mixtures forms an acid buffer [MP PMT 1993; IIT 1981; CPMT 1989; CBSE PMT 1989] 

An acidic buffer solution can be prepared by mixing solution of [MNR 1983] 

The pK_a of a weak acid is 4.8. What should be the ratio of [Acid]/[Salt] of a buffer if pH = 5.8 is required [MP PET 2003] 

By adding a strong acid to the buffer solution, the pH of the buffer solution [DPMT 1996]

Components of buffer solution are 0.1M HCN and 0.2 M NaCN . What is the pH of the solution [RPET 2000]

Which is incorrect for buffer solution [CPMT 1985] 

. For preparing a buffer solution of pH 6 by mixing sodium acetate and acetic acid, the ratio of the concentration of salt and acid should be ( 10^-5 =Ka ) [MP PET 1997] 

1 M NaCl and 1 M HCl are present in an aqueous solution. The solution is [AIEEE 2002]

Which of the following is the buffer solution of strong acidic nature [MP PET 2002]

Which is a buffer solution [CPMT 1985, 88; AIIMS 1980; MP PMT 1994; AFMC 2004] 

The pH of blood does not appreciably change by a small addition of an acid or a base because blood [CBSE PMT 1995]

The Pk_a values of CH₃COOH is 4,74, the pH of equimolar solution of acetic acid and sodium acetate is: NUMS2019

Correct relation between relation between pH and pKa ? MDCAT2015

A buffer solution that which resists/ minimize the change in MDCAT2012